pico-tracker/firmware/inc/rtty.h

46 wiersze
1.5 KiB
C

/*
* Bit-bangs RTTY
* Copyright (C) 2014 Richard Meadows <richardeoin>
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#ifndef RTTY_H
#define RTTY_H
#include "util/dbuffer.h"
/**
* Output String
*/
#define RTTY_STRING_MAX 0x200
/**
* It's actually a double buffer which we swap for mid-string updates
*/
ARRAY_DBUFFER_T(char, RTTY_STRING_MAX) rtty_dbuffer_string;
int rtty_active(void);
int rtty_start(void);
int32_t rtty_get_index(void);
void rtty_set_length(int32_t length);
void rtty_tick(void);
#endif /* RTTY_H */